Q:

How long does a dog's heat last?

A:

Quick Answer

The heat cycle of each individual dog and breed varies, but it typically lasts 21 to 28 days. A dog is generally fertile for 18 of those days.

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Full Answer

The first heat cycle occurs when a female dog is between 6 and 24 months old, typically occurring earlier for smaller breed animals. An unspayed female has two heat cycles per year, approximately every six months.

The three stages of a female dog's heat cycle include proestrus, estrus and diestrus. During proestrus, the dog's vulva appears swollen and the dog has bloody vaginal discharge and urinates frequently. During this stage, the female appears nervous, distracted and more alert. During estrus, the female is fertile and ready to breed. She instinctively attempts to attract dogs of the opposite sex. The final stage of the heat cycle is diestrus. During this stage, bleeding stops and interest in copulation ceases.

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Related Questions

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    How old does a dog have to be before it can breed?

    A:

    A female dog is bred for the first time during her second heat cycle or after, provided that she is no older than 12 years of age. A male dog is ready to breed by about 15 months of age.

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    How old does a dog have to be to have puppies?

    A:

    Female dogs experience their first reproductive cycle, or heat, when they are between six months and two years old, explains WebVet. The female dog can become pregnant during her first heat. Whitney Veterinary Hospital recommends letting a dog go through at least one heat before becoming pregnant.

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    A dog can survive two to three days without water, although this time frame varies based on the temperature and humidity of the dog's environment and its activity level.

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    What is the best day to breed a dog?

    A:

    There is no exact day that is ideal for every dog, but the average days that dogs can be bred while they are in heat are the ninth, eleventh and thirteenth days. The day that is ideal to breed will vary from dog to dog, but will often remain consistent from heat to heat in an individual dog.

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